<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="../assets/heima.png" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 主题区域 -->
    <el-container>
      <!--侧边栏菜单-->
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="changeStatus">|||</div>
        <el-menu background-color="#333744" text-color="#fff" unique-opened="unique-opened" :collapse="isCollapse" :collapse-transition="false" router :default-active="activePath">
          <!-- 一级菜单 -->
          <el-submenu :index="item.id.toString()" v-for="item in menuList" :key="item.id">
            <!-- 一级菜单的模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconList[item.id]"></i>
              <!--文本-->
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item :index="'/' + subitem.path" v-for="subitem in item.children" :key="subitem.id" @click="saveNavStatus('/' + subitem.path)">
              <template slot="title">
                <!-- 图标 -->
                <i class="el-icon-location"></i>
                <!--文本-->
                <span>{{subitem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu >
      </el-aside>
      <!-- 右侧内容 -->
      <el-main>
<!--        <button @click="getMenuList">获取Menu菜单</button>-->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
  export default {
    data () {
      return {
        menuList: [],
        iconList: {
          125: 'iconfont icon-users',
          103: 'iconfont icon-tijikongjian',
          101: 'iconfont icon-3702mima',
          102: 'iconfont icon-shangpin',
          145: 'iconfont icon-baobiao'
        },
        isCollapse: false,
        // 保存当前被激活的地址
        activePath: ''
      }
    },
    created () {
      this.getMenuList()
      // 当页面刷新时 在此获取本地的激活地址
      this.activePath = window.sessionStorage.getItem('activePath')
    },
    methods: {
      logout () {
        window.sessionStorage.clear()
        this.$router.push('/login')
        this.$message.success('退出成功！')
      },
      getToken () {
        // 获取token
        // console.log(window.sessionStorage)
        console.log(window.sessionStorage)
      },
      async getMenuList () {
        const { data: res } = await this.$http.get('/menus')
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.menuList = res.data
      },
      // 切换 折叠与不折叠
      changeStatus() {
        this.isCollapse = !this.isCollapse
      },
      // 保存链接的激活状态
      saveNavStatus(activePath) {
        window.sessionStorage.setItem('activePath', activePath)
        this.activePath = activePath
      }
    }
  }
</script>

<style lang="less" scoped>
  .el-header {
    display: flex;
    justify-content: space-between;
    background-color: #373d41;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    > div {
      display: flex;
      align-items: center;
      span {
        margin-left: 15px;
      }
    }
  }
  .el-aside {
    background-color: #333744;
    ul {
      border: 0;
    }
    .toggle-button {
      background-color: #4a5064;
      font-size: 10px;
      line-height: 24px;
      color: #fff;
      text-align: center;
      letter-spacing: 0.2em;
      cursor: pointer;
    }
  }
  .el-main {
    background-color: #EAEDF1;
  }
  .home-container {
    height: 100%;
  }
  .iconfont {
    margin-right: 10px;
  }
</style>
